US 11,833,838 B2
Ink jet recording method and ink jet recording apparatus
Maki Motomura, Tokyo (JP); Tomohiro Yamashita, Kanagawa (JP); Takashi Saito, Kanagawa (JP); and Arihiro Saito, Saitama (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 19, 2021, as Appl. No. 17/379,136.
Claims priority of application No. 2020-125238 (JP), filed on Jul. 22, 2020; and application No. 2021-103218 (JP), filed on Jun. 22, 2021.
Prior Publication US 2022/0024219 A1, Jan. 27, 2022
Int. Cl. B41J 2/21 (2006.01); B41M 5/00 (2006.01); B41J 2/175 (2006.01); C09D 11/107 (2014.01); C09D 11/322 (2014.01); C09D 11/40 (2014.01)
CPC B41J 2/2107 (2013.01) [B41J 2/175 (2013.01); B41J 2/17509 (2013.01); B41M 5/0023 (2013.01); C09D 11/107 (2013.01); C09D 11/322 (2013.01); C09D 11/40 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An ink jet recording method with use of an ink jet recording apparatus that includes a plurality of aqueous inks comprising a cyan ink, a magenta ink, and a yellow ink; an ink storage portion that independently stores the plurality of aqueous inks; a recording head having formed therein an ejection orifice through which each aqueous ink of the plurality of aqueous inks supplied from the ink storage portion is ejected; and a tube through which each aqueous ink of the plurality of aqueous inks is supplied from the ink storage portion to the recording head, and the method comprising:
applying each aqueous ink of the plurality of aqueous inks ejected through the ejection orifice onto a recording medium to record an image,
wherein the ink storage portion has provided thereto an inlet port through which each aqueous ink of the plurality of aqueous inks is filled,
wherein the tube is formed of a resin material,
wherein the cyan ink comprises a phthalocyanine pigment,
wherein both of the yellow ink and the magenta ink individually comprises an azo pigment,
wherein a mass ratio of a content (% by mass) of a resin to a total content (% by mass) of all the pigments in the magenta ink is more than both of (i) a mass ratio of a content (% by mass) of a resin to a total content (% by mass) of all the pigments in the cyan ink, and (ii) a mass ratio of a content (% by mass) of a resin to a total content (% by mass) of all the pigments in the yellow ink, and
wherein the contents of the pigments in the inks follow a decreasing order of the magenta ink, the yellow ink, and the cyan ink, from the largest to the smallest.